WQ0002378_BIMS Report_20230501

Compliance Inspection Report
Permit: WQ0002378 Effective: 06/01/21 Expiration: 05/31/27 Owner: Town of Mooresville
SOC: Effective: Expiration: Facility: Town of Mooresville SDU
County: Iredell 369 Johnson Dairy Rd
Region: Mooresville
Mooresville NC 28115
Contact Person: Allison Kraft Title: Public Utilities Director Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
NC0046728 Town of Mooresville - Rocky River WWTP
Inspection Date: 04/28/2023 Entry Time 10:OOAM Exit Time: 01:OOPM
Primary Inspector: Edward Watson Phone:
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Surface Disposal of Residual Solids (503)
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Miscellaneous Questions Record Keeping Storage
Wells
(See attachment summary)
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Permit: WQ0002378 Owner - Facility: Town of Mooresville
Inspection Date: 04/28/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
A site visit was performed on April 28 2023, for permit WQ0002378. The facility has been receiving a lot of precipitation over
the past year. The 2022/23 semi-annual well sampling reports are displaying increased nitrate concentrations. Increased
preecipitation may be a part of the explanantion for the observation of elevated nitrates being measured in wells. Most of the
wells are located downgradient of the monofill. It is possible that the biosolids are becoming mobile through the soils.
Material is continuing to removed from the monofill. The removal of the material from the monofill may also be a contributor
to the increasing nitrate presence in the monitoring wells. The monitor wells that are displaying increased nitrate presence
are also reporting elevated TDS values.
The permittee has contracted a consultant to aid with aseessment of the increased nitrate concentrations in the wells. The
MRO would like to have the consultant present trend data for the increase of nitrates. The consultant should also make
recommendations regarding the replacement or addition of monitor wells to the monofill.
Additionally, the MRO would like future Annnual Reports to include information presented in text and graphically on what
areas of the monofill have had all residual material completely removed, what areas areas of the monofill are being worked of
for material removal, and an estimate of how much material remains in the monofill.
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Permit: WQ0002378 Owner - Facility: Town of Mooresville
Inspection Date: 04/28/2023 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Type
Distribution and Marketing
Land Application
Yes No NA NE
Record Keeping
Yes No NA NE
Is GW monitoring being conducted, if required?
0
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Are GW samples from all MWs sampled for all required parameters?
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Are there any GW quality violations?
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Is GW-59A certification form completed for facility?
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Is a copy of current permit on -site?
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Are current metals and nutrient analysis available?
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Are nutrient and metal loading calculating most limiting parameters?
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a. TCLP analysis?
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b. SSFA (Standard Soil Fertility Analysis)?
❑
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Are PAN balances being maintained?
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Are PAN balances within permit limits?
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Has land application equipment been calibrated?
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Are there pH records for alkaline stabilization?
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Are there pH records for the land application site?
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Are nutrient/crop removal practices in place?
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Do lab sheets support data reported on Residual Analysis Summary?
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Are hauling records available?
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Are hauling records maintained and up-to-date?
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# Has permittee been free of public complaints in last 12 months?
❑ ❑ ❑
Has application occurred during Seasonal Restriction window?
❑
❑ 0 ❑
Comment: There are 2L violations for elevated Nitrates in several of the wells surrounding
the monofill
location. Most of the elevated nitrates are in the downgradient wells surrounding
the monofill.
The monofill has material removed from it every year during the Winter months to advance the
cleanout of the monofill.
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